Knew she was going to die from... Blunt trauma? Slicing/dismemberment? Poisoning? Internal bleeding/exsanguination? Being crushed? Probably none of these. Definitely not poisoning, slicing, or being crushed.Vampire in the sun? Clever! But not this either.

Was she blinded by the light? And this caused her to crash her motorcycle? Which she revved up like a deuce, another runner in the night? No to all. Also, -1 for using the Manfred Mann lyrics instead of the Bruce Springsteen ones.

Do both SHE's refer to the same person? Yes.

Does she suffer from any relevant disease? Yes.

Did she know she was going to be killed, and this couldn't be done in the dark (i.e she stood in front of a firing squad etc)? No.Was she being electrocuted and the power had been out? No.

Is it lightning? No. Is she epylect... epylept... does she suffer from epylepsy? That's a winner.

Relevant what whe is doing at the moment she sees the light? No.

Was her death a direct result of her illness in relation to seeing the light (such as eg. if you are allergic to pollen, breathe it and eventually choke)? Yes.

*****SPOILER***** She had a serious case of untreated photosensitive epilepsy, and saw a rapidly flashing light (not too relevant where, although lights on a police car would probably do), which she realized would (most likely) kill her, due to the seizure it would induce.

This is my first puzzle to be solved. :-) Thank you for playing, and check out my other puzzles.